Process for treating ores.



i tion process. In the already A To cllifwho'm) t may Acomzemf CARL scHIcK, or SIEGEN, GERMANY.

' PROCESS FOR TREATIN G GRES.

A Be it .known that I, CARL SCHICK, a subject of the King of Prussia, German ,Emperor, and' .resident of Siegen, in Westphalia, Kingdom of' Prussia, German Em.

1re, -have invented certain new anduseful rocesses for Treating Ores, of-,which the following is a specification. l

A This invention relates to a process for .the treatment of sultd Ur compound sulfid and carbonate, ore slimes and ores by thelevigaknown levigation process by Athe use of oil or paraiiin or ordinary aliphatic hydro-carbons, the separation of the -ioating products is not easily effected. The evaporation of the sions bad yieldsinvthe subsequent division of the suld ores by the well known process of washing. Recently it has been proposed to use eucalyptus oil' for the levigation process.- This oil easily `evaporates in the air after the levigation, so that the orel can be i separated from the gangue without further operations. Itis obvious, however, that this process istoo costly, both on account Iof the lprime cost of the aforesaid oil and also on account of the losses of oil: moreover, the

evaporation of the oil occasions great danparatus, the eucalyptus oil isv removed from A soluble in water which occasions 1n the levlgatlon, and moreover, -40

ger for the health of thev workmen and 1nhabitants, unless by the use of expensive apthe evaporation current, or is burned in a red-hot carbon column. It has 4been proposed to use a hydrocarbon of the aliphatic,

serles` and especially carbon tetra-chlorid. The tetra-chlorid compound has however the following drawbacks Firstly, it is easily great losses the price of it is very high. Also, the disagreeablesmell of this compound has prevented hitherto its use in practice. It was urther, proposed to use phenol 'and kre'sol.

account of the high cost and on account of their easy solubility in water. f The figure shows diagrammatically an apparatus used in connection herewith.

According to the present invention thereare employed for the purpose of the treatment of the sulfid'or preferably compound carbonate and sulfate ores chlorid of benzol or nitro-benzol, each separately or in combination as carriers of the metallic particles. Both' these compounds are insoluble in water and therefore are excellently suitable for the lSpecification of Letters Patent. ,Application mea November 14, 1.912.* serial No. f7al1,4o3.

the chemical industry can oil occain suitable smelting furnaces.

nary treatment of ore slimes of the aforesaid kind with the best yields. Moreover it af Patented Mar. 11;

4 purpose especially on account oftheir cheap e.: ness for the 4treatmentl after-'the levigation f 4 process. 4The process permits of a prelimifords a great technical advantage because iii"L the place of oil the cheapest by-products of cause the application of these productson account'of their great adhesiveness secures a veryconsiderable yield even with the very finest particles of ore. Further, the aforesaid materials are easily extracted after the separation of the ore from the gangue, after which the ore slimes can be divided into the separatel ores by well known mechanical means in cases where several-ores are present.

nd a use and bel. The following is given by way of example l l of the process. 100 kgs. of lead-zinc ore slimes'(sulfids) containing 20% of metal are treated alone or mixed with 5% of iron ore with two grams of bi-chlorid of' benzol (.CHiClz) stirred up together in a vessel and passed under l pressure into an acid, such as dilute sulfuric, bath of 359 Celsius. There then takes place a complete separation of the crude iron the one hand and of the sulfd ores onl the other inasmuch as these ores vrise to the surface and Athe iron ore and .the gangue sink down. By means of an elevator resistant to acid or by means of an' ejector the refuse is continually removed from the bottom of the vessel and the iioating ores are collected upon strainers. Also by the use of tri-chloore and gangue onv rid of benzol and various substitution products of the benzol series and also of nitro products of benzol derivatives the same advantage/s have been attained in a most surprising manner. The application of a vacuum facilitates the process and is therefore preferably employed. By vthe treatment with These materials j also are not se'rviceable`in practice both on extraction materials in suitable vessels' the pthus obtained `ore slime free from gangue is then extracted. Hereby a product is obof zinc, which can be easily further treated gangue is practically all removed from this product all the zinc ore and lead ore containing silver can be recovered from the liquors through filter apparatuses. Y-

For the reasons above set forth the adva-ntages of this new process as compared with old processes are obvious and moreover it has proved in practice that the other vtained containing suldl of lead and suliid levigating processes With` the exception of theone by aid of eucalyptus oil give a prod- 'Iuct which can only be sub-divided into its 1com onent ores imperfectly.

aving now particularly described and ascertained the nature of my said invention and in Whatmanner the same is to be peri formed, I declare that what I claim is:

1. That process of treating ore' slimes which consists in mixing the slimes with a benzolV derivative, agitating the mixture,

snbjecting the mixture to an acid bath, and

permitting the settlement of the mixture.

2. That rocess of treating ore slimes which consists in mixing the slimes with a chlorin derivative of benz01,agitating the .mixture, subjecting the mixture to an acid' bath, and permitting the settlement of the mixture. y

3. That process of treating ore slimes which consists in mixing the slimes with a chlorin derivative of benzol and a nitrogen derivative of benzol, agitating the mixture,V

subjecting the mixture to an acid bath, and permitting the settlement of the mixture.

In testimony, whereof 1Z .have signed my name to this specification inthe presencecf 

